How do i get the victim's location while the attacker is selected?

[LiveBerry647302]

Is there a way i can acquire the coordinates of a victim while still selecting the attacker? As both images suggest I am trying to get if the attacker's location is in the 5 block radius of the victim's location. For "current location" I want the game value to get the victim and not the attacker. I will try multiple ways after this and will update when something works and open for constructive criticism on what i should do instead

tl;dr, I am trying to get if the attacker's location is in the 5 block radius of the victim's location. How do i do that?